<PRE>题名：The effects of human capital and R&amp;D upon International trade<BR>flows: Evidence from a multi-inpu</PRE><PRE>&nbsp;</PRE><PRE>t, multi-output model for the United<BR>States<BR>作者：Evangelos&nbsp;N.&nbsp;Charos and Evangelos&nbsp;O.&nbsp;Simos<BR>期刊全称或缩写：<A href="http://www.springerlink.com/content/112760/?p=ff5c9e3d54b84198b7f796c9a315c86b&amp;pi=0">Review of World Economics</A><BR>年份，卷（期），起止页码：<A href="http://www.springerlink.com/content/g136518m1518/?p=ff5c9e3d54b84198b7f796c9a315c86b&amp;pi=0">Volume 124, Number 4 / Dezember 1988</A></PRE>
                <BR>电子链接：http://www.springerlink.com/content/7172056053p40688/<BR><BR>                <BR><PRE>题名：Wealth Distribution, Human Capital and International Trade</PRE><PRE>作者：<A href="http://ideas.repec.org/f/pra207.html">Priya  Ranjan</A><BR>期刊全称或缩写：<FONT size=3>California Irvine - School of Social Sciences</FONT><BR>年份，卷（期），起止页码：<FONT size=3>in its series <A href="http://ideas.repec.org/s/fth/calirv.html">Papers</A> with number 97-98-07.</FONT>
                <BR>电子链接：http://ideas.repec.org/p/fth/calirv/97-98-07.html</PRE>